Home / 513,039,600.80-707,975,681.58-278,085,216.74

Finding the Fourth Proportional to 513,039,600.80, 707,975,681.58 and 278,085,216.74

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Solution

The fourth proportional to 513,039,600.80, 707,975,681.58 and 278,085,216.74 is: 383,747,318.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,600.80 : 707,975,681.58 = 278,085,216.74 : x
  2. Step 2: Convert to fraction form
    513,039,600.80/707,975,681.58 = 278,085,216.74/x
  3. Step 3: Cross multiply
    513,039,600.80x = 707,975,681.58 × 278,085,216.74
  4. Step 4: Simplify right side
    513,039,600.80x = 196,877,570,855,283,680
  5. Step 5: Solve for x
    x = 196,877,570,855,283,680/513,039,600.80
  6. Step 6: Final answer
    x = 383,747,318.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.